Machine for manufacturing spirally-wound tubes.



L. C. MALTBY. MACHINE FOR MANUFACTURING SPIBALLY APPLICATION FILED FEB. 21, I91 1,5%,6

WOUND TUBES. 6.

Patented Jan. 22, 1918.

3 SHEETS-SHEEI I.

L. C. MALTBY. MACHINE FOR MANUFACTURING SPIHALLY WOU ND TUBES.

APPLICATION FILED FEB. ZI, I916.

Patented Jan.22, 1918.

3 SHEETS-SHEET 3.

" FtlE.

IS G. MALTBY, OF WASHINGTUN, DISTRICT 015 COLUMEIA, ASSIGNORI TO THE STONE STRAW COMPANY, OF WASHINGTON, DISTRICT OF COLUMBIA, A CQOTtATION 01" NEW uT'EBblEY.

macnmn roa MANUFACTURING srIanntr-wouim "runes.

specificatlbn of Letters Patent.

Patented Jan. 22, 33913.

Application filed February 21, 1918. terial No. 79,754.

in machines for manufacturing spirallywound tubes, and more particularly tubes in the form of so-called artificial straws. This invention has for its ob ect a special means for adjusting the belt tension, where-. by the two pulleys, over which the cross-belt which forms or s ms the tube or straw are simultaneously a justed on the ends of the bolster, which latter is supported and capable of being swung to diflerent positions on, '20 the machine-bed or frame.

In the accompanying drawings:

Figure 1 is a plan view;

Fig. 2 is a view in front elevation on a somewhat larger scale than Fig. 1;

Fig. 3 is a view in rear elevation; and

Fig. 4 is a detail showing the gears for transmitting motion from one shaft to another.

A, represents the machine-bed or frame,

which is mounted on le (not shown), and

which aflords support will now be described.

A bolster B is supported on the top of the bed by a king-bolt or other means (not the parts which shown), whereby it is capable of being turned to vary its angle.

The outer ends 1 and 2 of the bolster are" lindrical in form and made hollow as Shown in- Fig. 3, the ends being secured by all bolts or other means 3, 3, to the main part of the bolster.

Cylindrical heads4 and 5 are fitted to the ends 1 and '2 respectively, and are ca able of bein adjusted in and out thereon. le

as this ad ustment might be effected in any approved manner, as a simple means for accomplishing it the screw-shaft 6 is employed, this screw-shaft having a grip or handle 7 thereon, by which it is turned, and being to rotatably supported in bearings 8, 8, on the bolster and having collars 9., 9, secured thereon close to these hearings 8, 8, toprevent the screw-shaft from moving endwise. e outer ends of the screw-shaft 6 have held in the hub 19, which extends upwardly from the head 4. The shaft 17 and the bushing 18 project down through and are slidable in the longitudinal slot 20 in the top of the hollow cylindrical end 2 of the bolster B (as shown in Fig. 3) and on the lower end of shaft 17 is keyed a miter-gear 21. -'This meshes with a miter-gear 22, which latter is slidably held by the spline 23 upon the shaft 24, the ends of which latter are journaled in boxes 25 and 26 in the opposite ends of the hollow cylindrical and 2 of the bolster. The miter 22 is held in position on the head 4 by means of the bolt 27, depend ing from the head 4 through the slot 20, as shown at the right-hand end of Fig. 3, thereby always keeping the miters 21 and 22 in mesh with each other, and slidin the miter 22 on the shaft 24 with any ad ustment of the head 4 upon the hollow cylindrical end 2 of the bolster.

The shaft 24 is rotated through a miter 28 keyed thereon, the teeth of which mesh with a miter 29 keyed on the upper end of a vertical shaft 30, which latter is supported and journaled in a bracket 31 adjustably se- 32, 32, operating through slots 33, 33. 0n the shaft 30 is keyed the spiral gear 34 which meshes with a spiral gear '35 secured on the drive-shaft 36.- Drive-shaft 36 has a beltpulley 37, and a balance-wheel 38 secured cured to the side of the bed A by "the bolts I operator to the shaft which, when turning,

The gears 47, 48' and 49 are confined within,

always is with the first setting-up and. adjustment of the machine. ,Any such adjustment also would makeit necessary to move the miter 28 to keep its teeth in mesh with the miter 29 o n the shaft 30, and for this reason the angle-block 39 is employed, the ends of which extend at right-angles to each other, and in which ends the shafts 24 and 30 turn, the upright end of the angle-block 39 having the hu of miter 28 journaled or swiveled therein, which miter, like miter 22, is splined on the shaft 24. A slot 39 is formed in the bottom of the hollow end 2 to receive this angle-block 39 and permit this adjustment.

In this way, it is understood that any adjustment of the bracket 31 which carries the shaft 30-and-spiral-gear 34 also moves the angle-block 39 and with it the miter-gear 28 to keep it constantly in mesh with miter 29.

A glue-wheel 40 is secured on shaft 41 journaled in the glue-pot 42, over which glue-wheel the strip of paper 43 is drawn on its way to the mandrel 44 to be spun into the tube or straw by a belt 16, as is clearly understood.

The glue-wheel shaft 41 is a continuation of the extensible shaft 45, which latter has the two universals 46, 46, which are necessitated from the fact that the glue-wheel shaft 41 is in adifferent plane from the outer end of the extensible or telescopic shaft 45. On the outer end of shaft 45, a gear 47 is keyed, and this meshes with an intermediate gear 48, which latter meshes with a gear 49, driven by shaft 24, through the spring-actuated do 50, which engages one of the notches 51 internally formed in the gear 49, as shown in Fig. 4. The purpose of this construction is to enable the place a crank on the end 52 of the glue-wheel shaft 41 in order to rotate the glue-wheel 40 to clean and prepare the latter for work, it thus being possible to turn the shaft 41 and gears 47 48 and 49 through 41, independently of the shaft 24, actuates these gears.

a housing 53, as shown in Fig. 4.

I claim:

' 1. The combination with a machine bed or frame, a bolster mounted thereon, a mandrel, means carried by the bolster for spinning strips of pa or on the mandrel, and a gluepot mounte on said bolster in 'such a position as to apply glue to one of the said strips.

2. The combination of a machine bed or frame, a bolster rotatably mounted thereon a mandrel, means carried by the bolster foii spinning strips of paper on the mandrel, and

a glue-pot ad ustably mounted on said bolster. I

frame, of a tical shaft, and miters on and the horizontal shaft in the bolster end 3. The combination with a machine-bed or bolster supported by the bed, a

bolster, a horizontal shaft journaled in thehollow cylindrical end, a vertical shaft journaled in the head, miter-gears on said shafts for transmitting motion from one to the other, with one of said gears for moving the latter with the head, and means extending transversely into the hollow cylinder for transmitting motion from the drive shaft to said horizontal shaft.

4. The combination with a machine-bed or frame, of a bolster supported by the bed, a hollow cylindrical end having lon 'tudinal slots at the top and bottom thereo secured to the bolster, a head slidably connected with said end, a cent to said bolster, naled in the hollow tical shaft journaled a horizontal shaft jourcylindrical end, a verin the head, and extendmain drive shaft arranged adjaa means connected with the head and mlter-gears on said motion from one to means connected with the head and with oneiof said gears for moving the latter with the head, means extending through the lower slot for transmitting motion from the drive shaft to said horizontal shaft, said means comprising a vertical shaft, spiral gears for communicatingmotion from the drive-shaft to said verticalshaft, and miters on the vertical shaft and the horizontal shaft in the bolster end for transmitting motion from one to the other. I

5. The combination with a machine-bed or frame, of a bolster supported by the bed,

shafts for transmitting the other,

a hollow cylindrical end secured to the bolster, a head slidably connected with said adjacent a horizontal shaft journaled cylindrical end, a vertical in the head, miter-gears on said shafts for transmitting motion from one to the other, means connected with the head and with one of\said gears for moving the latter with the head, means for. transmitting motion from the drive shaft to said horizontal shaft, said means comprising a end, a main drive shaft arranged to said bolster, in the hollow shaft journaled vertical shaft, spiral ears for communicatmg motion from the rive-shaft tosaid verthe, vertical shaft for transmitting motion from one to the other, and means for adjusting saidvertical shaft and intergeared miter.

6. The combination with a machine-bed or frame, of a bolster-having one hollow end, a head adjustable thereon, vertical shafts rotatably supported by the bed and bythe head, an intermediate horizontal shaft rotatably supported by and within the hollow end, miter-gears for transmitting motion from one vertical shaft through the horizontal shaft to the other vertical shaft, and

naeasse means for independently adjusting said vertical shafts and with them the miters on the horizontal shaft.

zontal shaft to the other vertical shaft,

' means for independently adjusting said vertical shafts and with them the miters on the horizontal shaft, a drive-shaft, and spiral gears for transmitting motion from said drive-shaft to one of the vertical shafts.

8. The combination with a machine-bed or frame, of a bolster, an end of the bolster being hollow, a shaft journaled in said hollow end and having miters splined thereto, shafts extending at right-angles to the horizontal shaft having miters which engage the spline miters on the horizontal shaft, means for keeping the miters together, and independent means for separately adjusting said two shafts extending at right-angles to the horizontal shaft in connection with the two .splined miters on the horizontal shaft.

9. The combination with a machine-bed or frame, a bolster mounted thereon, a mandrel, a belt mounted on said bolster for spinning strips of paper on the mandrel, of a glue-pot mounted on said bolster, :a gluewheel and shaft therefor in said pot, means for driving the belt, gears. for communicating motion from the belt driving means to the glue-shaft, and means whereby the glueshaft, may be rotated independently of its driving means.

10. The combination with a machine-bed or frame, a bolster mounted thereon, a mandrel, and means mounted on said bolster for spinning strips of paper thereon into the form of a tube, of a glue-pot adjustably mounted on said bolster, a shaft journaled therein, a glue-wheel carried by said shaft, a drive-shaft, and means for transmitting motion therefrom to the glue-wheel shaft, and nieans whereby said glue-wheel shaft may be turned independently of its driving mechanism.

11. The combination with a machine-bed or frame, a mandrel, belt, and means for driving said belt around the mandrel, of an adjustable glue-pot, a glue wheel, a shaft therefor, and extensible flexible means for transmitting motion from the drive mechanism to the last named shaft, whereby the glue pot may be turned at any angle.

12. The combination with a machine-bed or frame, 'a bolster pivotally mounted thereon, a mandrel, a belt carried by the said bolster and means for driving said belt around the mandrel, of a glue-pot detachably mounted on said bolster, a glue-wheel,

an extensible flexible means for transmitting motion from the driving mechanism to the last named shaft.

In testimony whereof I aflix my signature.

LEWIS C. MALTBY. 

